Tubular flame oil burner for crucibles and other uses



May 4,19ze. 1,583,311

E. A. REID TUBULAR FLAME OIL BURNER FOR CRUCI'BLES AND OTHER USES Filed Oct. 22. 1924 filiali/1111111111,

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i `tion at line 1-1 Lof Fig.,2 ofa part of a'cru- Y ciblejvithin av flue, mounted onthe kusual vre- 'portingibarj v .i

In the accompanying drawings illustrat-Y y l y y Ition vof j' each depressed wall 141,. is formed vwith 'a series of jet orifices 16, thef'aXes of which are at uniformvangles'to lthe aXes of 'v the'jetor'ili'cesflt).I Thesejet oriiic'esl"and` Y .16 are arranged l'in pairsjin' a verticaliplane, jsothat a jet from 'onefoificelinipinges' di-v rectly upon` a jet through the'-otherffi'rifice` of the'pair ofo'rilices. y The-baril is also providedbetw'een its ends withv la lengthwise extending, Sfuel oilV receiving chambery 17 i the outer endof which a lengthwise extending,

Patented May' 4, 1926. y

UNITED STATES f ERNEST ANDREW lante,-onnolvzooit iiNGLANDf' TBUL'ARFLME oIL BURNER FoR'fcRnc'BnEsfaND OTHER usas. f

` Appliatioa med'o''tober" 22"," 1'924 semaine. 745,063. f

To all whomz't may concern Y rBe it known that I, EBNE fr ANDREWv REID, a subject of the King of Great'Britain, and

resident of London, England, have invented lcertain new and useful` Improvements inV Tubular` Flame Oil Burners for Crucibles and Other Uses, of which thefollowing isa specification.

-Thisinvention relates toy tubular flame oil burners Ifor vcrucibles and other uses. e Its object is to Vproduce a circular or tubular flame extending upwardly within the liue from below the crucibles supporting'means. Another objectisvto form the usual 'Crucible supporting bars ,wasburn'er members and to make such burnerfmember .readily substituted for the 'ordinary,1solid, Crucible suping-'the invention and forming apart hereof,

F1g.1 is' a vertical, central* section elevafractory material, which inturn is support ed on the upper sidev of a transverse, Cruciblev l supporting bar, such bar, inthe present case, being chambered'to form a burner member.

Fig. 2 is a vertical,` central sectional eleva" tion at rightangles tothe line of asection on which Fig. 1 1s taken. Fig. 2 isa section corresponding to vline 2-,2 of Fig. 1 andM also to line 2-2 of Fig. 3. Fig. 3 is la top plan view of the burner.` Fig. 4 is a vertical, central elevation ofthe burner enlarged, at line 4-4 of Fig. 3.

Fig. 5 is an end view of what' is shown vin Fig. 4. i

Fig. 6 is a diagrammaticl plan view of the' t u j "Ltransversely cut out at '22 tof'forni aL fueloil escapel vThe'lOvOOI'lf'l'2S Of'casifng 21 vconstitutes a film formingfloor of the casing f 21, Each end of this floor is turned down# 'ettino o aeration of m im rovediburner. l s l Y In the drawings, a horizontal burner'mein'-, ber hasjtheform of the usual solid, 4Crucible supporting bar., lt is provided between-its, ends, on its upper side,w`ith kan upstanding y lobe 2 on which refractory material 3. jis" mounted as a lsupport for theupstanding- Crucible 4, which is shown enclosed withfanordinary flue Af y .Y

The bar 1 is provided between its ends with ceiving chamber 5, the outer end of which is Vported for lconnection with an atomizing fluid supply `conduit 6; Chamber 5, 'at its inward end, is providediwith an escape port 7 in communication with'a dependent tube 8, the' under end of which carries atomizing fluid receiving atomizer y9 which extends atomizing fluid rev 7 transversely of and at right angle's'to thev -chamberedbar 1. Theunderg end ofy tube Sis provided with` a verticalfl'ange 10,which 4is -fastened toa vertical flange'll ofthe atomizer 9. PipeS is in communication through ayport 12`with the chamber 13 ofthe atom-` izer 9 the ends of which project equally4 at each side o-f thebar 1. v-Thegatomizer'u)'has a chambered casing and is shown Aprovided especially when Vthe atomizer'is cast. The

these walls `14Ais formed nearlthe adjacent end wall ofthe casing 9 with aA series oifjupwardly extending jet' orifices 15. At a higher level than the jet orifices-15,tlie upper'por- 'withplugs whereby chamberA may be 1 Y V zreadily cleaned out, whenand if, desired,

ply pipe 18. The inner end of chamber v17' which communicates' with the f upstanding,

.intake port 2OV of a fuel oil distributor cas- `.1s provided with a' fuel oil escape port 19 ing 21', which" is vmounted Va'bove'fzand'parallel is shorter than thecasing 9 and hasv its ends `lip` 24 extends"transversely across Vthe end with-the. af0mizerasingf9- The 5a-SingerV of' thecasin'g'21 and vis positioned above a depressed wall 14 ofthe 'casing 49,'softhatanY taneously at'eachend oftheV casinoi 21 "and falls yupon` the intersections yof thgl jets of Vatomizing'fluid issuing 'from the adjacent oil f filmy isfdelivered" over a lipf 24 'simul ein aar-oss an@Y nui maar if ,the lip, ,eerie-1 y,

spondingly to the length of each row of jet orifices and 16.

The tubular flame F, shown in Fig.y l, is effected by the suction of the upward draft through the flue A. It heats th-e crucible at the bottom thereofv equally and causes a simultaneously heating effect of the flame entirely around the crucible. Heretofore crucibles have been heat-ed unequally by a spiral flame impinging upon a side of the Crucible at the upper portion thereof. The unequal heating of crucibles, has heretofore resulted in frequent cracking of the -crucibles Y Y l j Y A great advantage of the present burner for use in connection with crucibles or the like, lis that the flame initially eected in each field of atomization at an end of the combined casings 9 and 21, is so removed from the sides of the chambered bar v1 that the bar is not raised to a destructive heat and becomes a substantially permanent member of the atomizing burner, the other members of which are of a permanent construction.

lThe jetting orifices being arranged in pairs having their axes in a vertical plane, -establish at approximately 415 from the horizontal a series of overlapping zones y of atomization, free from interstices, through which oil from the oil curtain could drop and result in carbonization, as illustrated in Fig. 6, whereas wheny the jets are arranged i in upper and under horizontal pairs, as ink 'A my said patent, there is no such an overlapping of zones of atomization as to preclude the formation of such lnterstices and such `interstices are formedl at e adjacent the points of intersection of the jets from each pair of horizontal jet orifices.

The barv l spans the under, open end of the flue A within which the crucible is mounted. The flue is provided with brackets a having horizontal portions through which bolts a pass downwardly through openings nf in the end extensions a3 of the bar' l.

Thus the chambered bar is readily detachable; and can be .readily substituted for solid bars heretofore used for supporting the crucibles. j Y

In the burner shown in said earlier patent vand also according to the present invention,

.atomizing fluid is minimized by the impinging of one jeton'the other, and further by the dropping of the film of fuel oil on the poi1i`t-of collision of the-jets, the omized mixture of fluid and fuel or combustible product enters a furnace on which and even flame is produced. rlhe time ele ment whic-h this burner introduces is one of the features characterizing the working of this burner. lt is found in practice that practically smokeless 'combustion is pro duced if the fuel oil and atomizing fluid supply are correctly adjusted.

It has been found in actual practice that with burners provided with the atomizing jets with their axes of impingement in a vertical plane instead of in the horizontal plane oil does not drop through the stream of atomizing fluid. This is owing to the fact that the zone of dispersed atomization, due to each pair of jets, is at right angles'to their axes of impingement, the dispersion zone formed by one pair overlapping that pro- `duced by the neighboring pair of jets and forming thereby a complete and continuous zone of dispersed atomization, which does not permit thefdropping through the zone Vof dispersed atomization of the fuel. lf this occurred, it would cause trouble in operation by the oil dropping on to the floor of the furnace and carbonizing there. in order to effect this action, it will be noted that with jets impinging with their axes horizontally,

the zones of dispersion will be,Y vertical, Vand i it is practically inevitable that in this way interstices will be formed between adjacent zones of dispersion, and fuel will be apt to drop through. The complete and satisfactory combustion of the fuel oil in a burner wnth the atomizing jets, located'one above the other and with their axesl of impingement vertical, is further assured by the construction given to the lower edge of the lipof the burner which is formed with an irregular edge, so that theoil, due to its viscosity and sur-face tension produced, maintains al film of practically even thiclc ness the whole width ofthe burner, insuring thereby the even working of the atomizing fluid and the production of an entirely even and well dispersed flame; securing also a. uniform distribution of heat in the boiler yor furnace or object to be heated.

The overlapping zonesrjz/ of atomization extend slantingly upwards in the tubular frame produced by the burner.

Vihat I Vclaim is: vl. As a new article of manufacture, a fuel oil, tubular flame burner comprising a bar chambered for reception and discharge of fuel oil;V a casing having a fuel oil receiving Vone of said lips; said wall being provided with an upper series and also with an under l series of jet orifices; said casings being in CIJ parallelism one with another and mount-ed crosswise of said chambered bar; and each lip and the therewith associated jet orifices being spaced apart from a side of the bar.

2. As a new article of manufacture, a fuel oil, tubular llame burner comprising a bar chamber for reception and discharge of fuel oil; a casing having a fuel oil receiving chamber; and a casing having a therewith alined, atomizing fluid receiving chamber; the fuel oil receiving chamber having openings at each end and an oil filmsupporting bottom wally terminating in a dependent, transverse, oil discharge lip at each said opening; and the atomizing fluid receiving chamber having at each end a transverse wall spaced apart from and located belowl one of said lips; said wall being provided with an upper series and also with an under series o-f jet orifices; said `casings being in parallelism one with another and mounted Vcrosswise of said chambered bar; and each lip and the therewith associated jet orifices being spaced apart from a side of the bar; each of said lip-s having dependent end lobes.

3. A fuel oil tubular flame buiner com cated below one of said lips; said wall being provided with an upper series and also with an under series of jet orifices; said casings being in `parallelism one with another and mounted crosswise of said chambered bar; andeach lip and the therewith associated jet orificesbeing spaced apart from a side of the bar; all in combination with an upstanding flue; within the flue anl upstanding crucible supported on said bar, the bar spanning the under side of the flue to permit discharge of the flame upwardly and tubularly around the Crucible.

Il.v A fuel oil burner having a lengthwise extending, atomizing fluid receiving and discharge chamber, a. lengthwise extending, fuel oil receiving and discharge chamber; communicating with said atomizing fluid receiving and discharge chamber', a casing mounted crosswise of said chambered bar and provided at each end with jet orifices; and, communicating with said fuel oil receiving and discharge chamber, a casing provided at each eiidwith an oil film discharge lip spread apart from and located to disassociated jetY orifices.

5. A fuel oil burner having a lengthwise 'charge upon jets issuing from the therewith extending, atomizing fluid receiving andl discharge chamber, a lengthwise extending, fuel oil receiving and discharge chamber: communicating with said atomizing fluid receiving and discharge` chamber, a casing mounted crosswise vof said chambered bar and provided at eacliend with jet orifices; and, communicating with 'said fuel oil receiving andY dischargeV chamber, a casing provided at each end with an oil'film dis-V charge lip spread apart from and located to discharge upon ]ets issuing from the therewith associated )et orifices; the Jet oriiices in each end of the atomizing fluid redayof October'A. D. 1924.

ERNEST A. anni. 

